In-mold material strip CNC drilling and milling machine

Abstract

The present invention discloses a CNC drilling and milling machine for in-mold material strips, which includes a frame, a workbench, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism, a drilling and milling machine head, a lower die base, an upper die base, a punch, a guide assembly and a driving device. The lower die base is arranged on the workbench, the upper die base is arranged above the upper die base through the guide assembly, and the punch is arranged on the upper die base. The lower die base, the upper die base, the punch, the guide assembly and the driving device are cleverly added to the workbench, and the upper die base is driven by the driving device to perform mold closing and mold opening actions relative to the lower die base, thereby achieving the purpose of continuous stamping, and the drilling and milling machine head is driven to perform drilling and milling in cooperation with the X, Y, and Z axis moving mechanisms, so that the drilling and milling process can be performed while the stamping process is in progress, and the function is multi-functional, and the process of re-carrying and positioning is omitted, which saves time and labor, not only improves the work efficiency, but also ensures the processing accuracy. In addition, the overall structure is simple, easy to implement, and is conducive to popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control drilling and milling machines, and in particular to an in-mold material strip numerical control drilling and milling machine. Background Art

[0002] Drilling and milling machines are machine tools that integrate drilling, milling, boring and grinding, and are suitable for processing various small and medium-sized parts.

[0003] For example, the publication number "CN206216244U", named "Multifunctional CNC Drilling and Milling Machine", discloses a multifunctional CNC drilling and milling machine, including: a machine table, a support arm is fixedly installed on each of the left and right sides of the machine table, a crossbeam and a movable beam are fixedly arranged between the upper ends of the two support arms, a Y-guide rail is arranged on the upper surface of the crossbeam, and a guide rail is arranged on the side of the movable beam. The drilling and milling mechanism can be moved arbitrarily in the Y-axis and Z-axis directions by using the Y-guide rail arranged on the upper surface of the crossbeam, the movable beam, and the guide rail arranged on the side of the movable beam. At the same time, the X-guide rail on the machine table can be used to realize the arbitrary movement of the parts to be processed in the X-axis direction. By accurately controlling the position movement of the drilling and milling mechanism and the parts to be processed, high-precision drilling and milling of parts processing is achieved. However, its function is single, and it only has drilling and milling functions, but no stamping function. The traditional process is to first stamp and form the hardware strip by stamping equipment, and then move it to the CNC drilling and milling machine for repositioning and drilling and milling. The operation steps are cumbersome, time-consuming and labor-intensive, the processing cycle is long, the work efficiency is low, and it is difficult to ensure the processing accuracy. Summary of the invention

[0004] In view of the above-mentioned deficiencies, the object of the present invention is to provide an in-mold material strip CNC drilling and milling machine with a reasonable structural design and integrated stamping and drilling and milling functions.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a CNC drilling and milling machine for in-mold material strip, which includes a frame, a worktable, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism, a drilling and milling head, a lower die base, an upper die base, a punch, a guide assembly and a driving device, wherein the worktable is arranged at the lower part of the frame, the X-axis moving mechanism is arranged at the upper part of the frame, the Y-axis moving mechanism is arranged on the Z-axis moving mechanism, the Z-axis moving mechanism is arranged on the Y-axis moving mechanism, the drilling and milling head is arranged on the Z-axis moving mechanism, the lower die base is arranged on the worktable corresponding to the lower position of the drilling and milling head, the upper die base is arranged at the upper position of the upper die base through the guide assembly, the punch is arranged on the surface of the upper die base facing the lower die base, and the driving device is arranged on the lower die base, and can drive the upper die base to perform mold closing and mold opening actions relative to the lower die base.

[0006] As an improvement of the present invention, the middle part of the upper surface of the lower die base is raised to form a punching platform, and both sides of the upper surface of the lower die base are recessed downward to form a mounting portion, which facilitates installation and avoids structural interference.

[0007] As an improvement of the present invention, a positioning column is provided on the surface of the punching table, and a positioning hole matched with the positioning column is provided on the lower surface of the upper template. The positioning column is matched with the positioning hole to improve the stamping accuracy.

[0008] As an improvement of the present invention, the upper template is provided with a through hole for the cutter head of the drilling and milling machine head to pass through. The upper end opening of the through hole gradually increases to form a bell mouth, which is more convenient for the cutter head to pass through.

[0009] As an improvement of the present invention, the guide assembly includes a guide column and a guide sleeve, the guide sleeve is arranged on the lower die base, the guide column is arranged on the upper die base at a position corresponding to the guide sleeve, and the lower end of the guide column extends into the guide sleeve. The guide column and the guide sleeve cooperate to achieve relatively accurate mold closing and mold opening of the upper die base and the lower die base.

[0010] As an improvement of the present invention, the driving device is an air cylinder or an oil cylinder, the cylinder body of which is fixed on the lower mold base, and the piston rod of which extends upward and is connected to the upper mold base. The mold closing and opening actions are achieved by the extension and retraction of the piston rod, and the structure is simple.

[0011] As an improvement of the present invention, the frame includes a base and a gantry arranged on the base, and the upper surface of the crossbeam of the gantry is recessed downward to form an X-mounting cavity for mounting the X-axis moving mechanism, which facilitates the installation of the X-axis moving mechanism.

[0012] As an improvement of the present invention, the X-axis moving mechanism includes an X motor, an X slide, an X slide rail, an X slider, an X screw and an X nut, two X slide rails are symmetrically arranged on both sides of the X installation cavity, the X screw is arranged between the two X slide rails through an X bearing seat, the X motor is located in the X installation cavity and is connected to the X screw, the X slide is movably arranged on the X slide rail through the X slider, the X nut is arranged on the bottom surface of the X slide and is compatible with the X screw. The Y-axis moving mechanism includes a Y fixed seat, a Y motor, a Y slide, a Y slide rail, a Y slider, a Y screw and a Y nut, two Y slide rails are symmetrically arranged on both sides of the bottom surface of the Y fixed seat, the Y screw is arranged on the bottom surface of the Y fixed seat corresponding to the position between the two Y slide rails through the Y bearing seat, the Y motor is located on the Y fixed seat and is connected to the Y screw, the Y slide is movably arranged on the Y slide rail through the Y slider, the Y slide is fixed to the X slide, and the Y nut ​​is arranged on the top surface of the Y slide and is compatible with the Y screw. The Y-axis moving mechanism is cleverly designed to be inverted, making the overall structure more compact and having a good coordination effect, while also preventing foreign matter from falling into the Y-axis moving mechanism.

[0013] The beneficial effects of the present invention are as follows: the structural design of the present invention is reasonable, and a lower die base, an upper die base, a punch, a guide assembly and a driving device are cleverly added to the workbench. The driving device is used to drive the upper die base to perform mold closing and mold opening actions relative to the lower die base, thereby achieving the purpose of continuous stamping, and cooperating with the X, Y, and Z axis moving mechanisms to drive the drilling and milling machine heads to perform drilling and milling, and can perform drilling and milling processes while performing stamping processes. It has multiple functions and eliminates the processes of re-carrying and positioning, saving time and effort, not only improving work efficiency, but also ensuring processing accuracy. In addition, the overall structure is simple and easy to implement, which is conducive to popularization and application.

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the X-axis moving mechanism and the Y-axis moving mechanism in the present invention.

[0017] Figure 3 It is a structural schematic diagram of the workbench in the present invention.

[0018] Figure 4 It is a structural schematic diagram of the lower die base in the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the present invention equipped with a protective shell. DETAILED DESCRIPTION

[0020] See also Figures 1 to 5 The present embodiment provides an in-mold material strip CNC drilling and milling machine, which includes a workbench 1, a frame 2, an X-axis moving mechanism 3, a Y-axis moving mechanism 4, a Z-axis moving mechanism 5, a drilling and milling head 6, a lower die base 7, an upper die base 8, a punch 9, a guide assembly 10 and a driving device 11.

[0021] The frame 2 includes a base 21 and a gantry 22 disposed on the base 21, the workbench 1 is disposed on the base 21 of the frame 2, and the X-axis moving mechanism 3 is disposed on the crossbeam of the gantry 22. Specifically, the upper surface of the crossbeam of the gantry 22 is concave downward to form an X-mounting cavity for mounting the X-axis moving mechanism 3. The X-axis moving mechanism 3 includes an X-motor 31, an X-slide 32, an X-slide rail 33, an X-sliding block 34, an X-screw 35 and an X-nut 36. Two X-slide rails 33 are symmetrically disposed on both sides of the X-mounting cavity. The X-screw 35 is disposed between the two X-slide rails 33 through an X-bearing seat. The X-motor 31 is located in the X-mounting cavity and is connected to the X-screw 35. The X-slide 32 is movably disposed on the X-slide rail 33 through the X-sliding block 34. The X-nut 36 is disposed on the bottom surface of the X-slide 32 and is adapted to the X-screw 35.

[0022] The Y-axis moving mechanism 4 is arranged on the X-slide 32 of the Z-axis moving mechanism 5. Specifically, the Y-axis moving mechanism 4 includes a Y-fixed seat 41, a Y-motor 42, a Y-slide 43, a Y-slide rail 44, a Y-sliding block 45, a Y-screw 46 and a Y-nut 47. Two Y-slide rails 44 are symmetrically arranged on both sides of the bottom surface of the Y-fixed seat 41. The Y-screw 46 is arranged on the bottom surface of the Y-fixed seat 41 through a Y-bearing seat at a position corresponding to the position between the two Y-slide rails 44. The Y-motor 42 is located on the Y-fixed seat 41 and connected to the Y-screw 46. The Y-slide 43 is movably arranged on the Y-slide rail 44 through a Y-sliding block 45. The Y-slide 43 is fixed to the X-slide 32 by screws. The Y-nut 47 is arranged on the top surface of the Y-slide 43 and is adapted to the Y-screw 46. The Y-axis moving mechanism 4 adopts an inverted structure design, which makes the overall structure more compact and has a good matching effect, and also prevents foreign matter from falling into the Y-axis moving mechanism 4.

[0023] The Z-axis moving mechanism 5 is arranged at the front end of the Y fixed seat 41 of the Y-axis moving mechanism 4, and the drilling and milling head 6 is arranged on the Z slide seat of the Z-axis moving mechanism 5, and the Z-axis moving mechanism 5 drives the drilling and milling head 6 to move up and down.

[0024] The lower die base 7 is set on the workbench 1 by screws at a position below the drilling and milling machine head 6, and the upper die base 8 is set at an upper position of the upper die base 8 by a guide assembly 10. Specifically, the guide assembly 10 includes a guide column and a guide sleeve. Both sides of the upper surface of the lower die base 7 are recessed downward to form a mounting portion 71 to avoid structural interference. The guide sleeve is set on the mounting portion 71 of the lower die base 7, and the guide column is set on the upper die base 8 at a position corresponding to the guide sleeve, and the lower end of the guide column extends into the guide sleeve. The guide column and the guide sleeve cooperate to achieve relatively accurate mold closing and mold opening of the upper die base 8 and the lower die base 7. In other embodiments, the guide sleeve can also be set on the lower die base 7, and the guide column can be set on the upper die base 8.

[0025] The upper template is provided with a through hole for the cutter head of the drilling and milling machine head 6 to pass through. The upper end opening of the through hole gradually increases to form a bell mouth, which is more convenient for the cutter head to pass through.

[0026] The punch 9 is arranged on the surface of the upper die base 8 facing the lower die base 7 , and the driving device 11 is arranged on the lower die base 7 and can drive the upper die base 8 to perform mold closing and mold opening actions relative to the lower die base 7 .

[0027] A stamping platform 72 is formed by a protrusion in the middle of the upper surface of the lower die base 7. A cavity corresponding to the punch 9 is provided on the surface of the stamping platform 72. In order to improve the stamping accuracy, a positioning column 73 is provided on the surface of the stamping platform 72, and a positioning hole matched with the positioning column 73 is provided on the lower surface of the upper mold plate.

[0028] In this embodiment, the driving device 11 is a cylinder, and there are four of them, which are divided into two groups and symmetrically arranged on both sides of the guide assembly 10. The cylinder body of the cylinder is fixed on the mounting portion 71 of the lower mold base 7, and the piston rod of the cylinder extends upward and is connected to the upper mold base 8. The mold closing and opening actions are realized by the extension and contraction of the piston rod. In other embodiments, the cylinder can also be replaced by an oil cylinder.

[0029] See also Figure 5 The in-mold material strip CNC drilling and milling machine of the present invention may also include a base frame 12 and a protective shell 13. The in-mold material strip CNC drilling and milling machine is disposed on the base frame 12 as a whole to increase the overall height and bring convenience to operation. The protective shell 13 surrounds the in-mold material strip CNC drilling and milling machine as a whole, and an operation opening is provided on the front of the protective shell 13, a material outlet is provided on the left side, and a material inlet is provided on the right side.

[0030] During operation, the metal strip 14 is fed from the material inlet into the space between the lower die seat 7 and the upper die seat 8, the driving device 11 drives the upper die seat 8 downward, and the metal strip 14 is punched and formed into the first row of holes by the punch 9; the upper die seat 8 is reset, and the metal strip 14 is transported forward one station, the driving device 11 drives the upper die seat 8 downward, and the metal strip 14 is punched and formed into the second row of holes by the punch 9, at this time, the lower die seat 7 is kept stationary; at the same time, the first row of holes is just aligned with the through holes on the upper template. The drilling and milling machine head 6 is driven to move to the top of the through hole through the cooperation of the X-axis moving mechanism 3, the Y-axis moving mechanism 4 and the Z-axis moving mechanism 5, and moves downward to drill and mill the required slots for the first row of holes. After drilling and milling are completed, the Z-axis moving mechanism 5 drives the drilling and milling head 6 to withdraw from the through hole; then, the metal strip 14 is transported forward one workstation, and the driving device 11 drives the upper die seat 8 downward, and the metal strip 14 is punched out by the punch 9 to form the third row of holes; similarly, the Z-axis moving mechanism 5 drives the drilling and milling head 6 downward to drill and mill the required grooves in the second row of holes, and this is repeated, realizing continuous stamping processes while also realizing drilling and milling processes, thereby greatly improving work efficiency, increasing processing accuracy, and ensuring product quality.

[0031] According to the disclosure and teaching of the above specification, technicians in the field to which the present invention belongs can also change and modify the above implementation. Therefore, the present invention is not limited to the specific implementations disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation to the present invention. As described in the above embodiments of the present invention, other drilling and milling machines obtained by adopting the same or similar structure are all within the protection scope of the present invention.

Claims

1. A CNC drilling and milling machine for in-mold material strips, comprising a frame, a workbench, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a drilling and milling head, characterized in that: It also includes a lower die base, an upper die base, a punch, a guide assembly and a driving device, the workbench is arranged at the lower part of the frame, the X-axis moving mechanism is arranged at the upper part of the frame, the Y-axis moving mechanism is arranged on the X-axis moving mechanism, the Z-axis moving mechanism is arranged on the Y-axis moving mechanism, the drilling and milling head is arranged on the Z-axis moving mechanism, the lower die base is arranged on the workbench corresponding to the lower position of the drilling and milling head, the upper die base is arranged on the upper position of the lower die base through the guide assembly, the punch is arranged on the surface of the upper die base facing the lower die base, the driving device is arranged on the lower die base, and can drive the upper die base to perform mold closing and mold opening actions relative to the lower die base; The middle part of the upper surface of the lower die seat is convex to form a punching platform, and the two sides of the upper surface of the lower die seat are concave downward to form a mounting part; The upper die seat is provided with a through hole for the cutter head of the drilling and milling machine head to pass through; A positioning column is provided on the surface of the punching table, and a positioning hole matched with the positioning column is provided on the lower surface of the upper die seat; The guide assembly comprises a guide column and a guide sleeve, wherein the guide sleeve is arranged on the lower die seat, and the guide column is arranged on the upper die seat at a position corresponding to the guide sleeve, and the lower end of the guide column extends into the guide sleeve; The metal strip is fed into the space between the lower die seat and the upper die seat from the material inlet, and the driving device drives the upper die seat downward, and the metal strip is punched out of the first row of holes by the punch; the upper die seat is reset, and the metal strip is transported forward one station, and the driving device drives the upper die seat downward, and the metal strip is punched out of the second row of holes by the punch, at this time, the lower die seat is kept stationary; at the same time, the first row of holes is just aligned with the through holes on the upper die seat; through the cooperation of the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism The drilling and milling machine head is driven to move to the top of the through hole, and moves downward to drill and mill the required slots for the first row of holes; after drilling and milling, the Z-axis moving mechanism drives the drilling and milling machine head to exit the through hole; then, the metal strip is transported forward one station, and the driving device drives the upper die seat downward, and the third row of holes is punched out of the metal strip by the punch; similarly, the Z-axis moving mechanism drives the drilling and milling machine head downward to drill and mill the required slots for the second row of holes, and this process is repeated to realize the continuous stamping process and the drilling and milling process at the same time.

2. The in-mold material strip CNC drilling and milling machine according to claim 1, characterized in that: The upper end opening of the through hole gradually increases to form a bell mouth.

3. The in-mold material strip CNC drilling and milling machine according to claim 1, characterized in that: The driving device is an air cylinder or an oil cylinder, the cylinder body of which is fixed on the lower die base, and the piston rod of which extends upward and is connected to the upper die base.

4. The in-mold material strip CNC drilling and milling machine according to claim 1, characterized in that: The frame comprises a base and a gantry frame arranged on the base, and the upper surface of the crossbeam of the gantry frame is recessed downward to form an X-installation cavity for installing the X-axis moving mechanism.

5. The in-mold material strip CNC drilling and milling machine according to claim 1, characterized in that: The X-axis moving mechanism includes an X-motor, an X-slide seat, an X-slide rail, an X-sliding block, an X-screw rod and an X-nut. The two X-slide rails are symmetrically arranged on both sides of the X-installation cavity. The X-screw rod is arranged between the two X-slide rails through an X-bearing seat. The X-motor is located in the X-installation cavity and is connected to the X-screw rod. The X-slide seat is movably arranged on the X-slide rail through the X-sliding block. The X-nut is arranged on the bottom surface of the X-slide seat and is adapted to the X-screw rod.

6. The in-mold material strip CNC drilling and milling machine according to claim 5, characterized in that: The Y-axis moving mechanism includes a Y fixed seat, a Y motor, a Y slide seat, a Y slide rail, a Y slider, a Y screw and a Y nut. The two Y slide rails are symmetrically arranged on both sides of the bottom surface of the Y fixed seat. The Y screw is arranged on the bottom surface of the Y fixed seat corresponding to the position between the two Y slide rails through the Y bearing seat. The Y motor is located on the Y fixed seat and connected to the Y screw. The Y slide seat is movably arranged on the Y slide rail through the Y slider. The Y slide seat is fixed to the X slide seat. The Y nut ​​is arranged on the top surface of the Y slide seat and is adapted to the Y screw.

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